<template>
  <div class="app-container">
    <el-form :model="queryParams" ref="queryForm" size="small" :inline="true" v-show="showSearch" label-width="68px">
      <el-form-item label="任课教师" prop="teacherId">
        <el-select v-model="queryParams.teacherId"  placeholder="请选择任课教师" @click.native="getTeachers()">
          <el-option
            v-for="item in teacherOptions"
            :key="item.teacherId"
            :label="item.userName+ ':' +item.nickName "
          :value="item.teacherId"
          ></el-option>
        </el-select>
      </el-form-item>
      <el-form-item label="课程名称" prop="name">
        <el-input
          v-model="queryParams.name"
          placeholder="请输入课程名称"
          clearable
          @keyup.enter.native="handleQuery"
        />
      </el-form-item>
      <el-form-item label="课程描述" prop="description">
        <el-input
          v-model="queryParams.description"
          placeholder="请输入课程描述"
          clearable
          @keyup.enter.native="handleQuery"
        />
      </el-form-item>
      <el-form-item label="编号" prop="no">
        <el-input
          v-model="queryParams.no"
          placeholder="请输入编号"
          clearable
          @keyup.enter.native="handleQuery"
        />
      </el-form-item>
      <el-form-item label="总课时" prop="total">
        <el-input
          v-model="queryParams.total"
          placeholder="请输入总课时"
          clearable
          @keyup.enter.native="handleQuery"
        />
      </el-form-item>
      <el-form-item label="开始时间" prop="startTime">
        <el-date-picker clearable
                        v-model="queryParams.startTime"
                        type="date"
                        value-format="yyyy-MM-dd HH:mm:ss"
                        placeholder="请选择开始时间">
        </el-date-picker>
      </el-form-item>
      <el-form-item label="结束时间" prop="endTime">
        <el-date-picker clearable
                        v-model="queryParams.endTime"
                        type="date"
                        value-format="yyyy-MM-dd"
                        placeholder="请选择结束时间">
        </el-date-picker>
      </el-form-item>
      <el-form-item label="课程状态" prop="courseStatus">
        <el-select v-model="queryParams.courseStatus" placeholder="请选择1:正常;2:暂停；3:取消" clearable>
          <el-option
            v-for="dict in dict.type.course_status"
            :key="dict.value"
            :label="dict.label"
            :value="dict.value"
          />
        </el-select>
      </el-form-item>
      <el-form-item label="原价" prop="amount">
        <el-input
          v-model="queryParams.amount"
          placeholder="请输入原价"
          clearable
          @keyup.enter.native="handleQuery"
        />
      </el-form-item>
      <el-form-item label="折扣价" prop="discountPrice">
        <el-input
          v-model="queryParams.discountPrice"
          placeholder="请输入折扣价"
          clearable
          @keyup.enter.native="handleQuery"
        />
      </el-form-item>
      <el-form-item>
        <el-button type="primary" icon="el-icon-search" size="mini" @click="handleQuery">搜索</el-button>
        <el-button icon="el-icon-refresh" size="mini" @click="resetQuery">重置</el-button>
      </el-form-item>
    </el-form>

    <el-row :gutter="10" class="mb8">
      <el-col :span="1.5">
        <el-button
          type="primary"
          plain
          icon="el-icon-plus"
          size="mini"
          @click="handleAdd"
          v-hasPermi="['edu:course:add']"
        >新增</el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button
          type="success"
          plain
          icon="el-icon-edit"
          size="mini"
          :disabled="single"
          @click="handleUpdate"
          v-hasPermi="['edu:course:edit']"
        >修改</el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button
          type="danger"
          plain
          icon="el-icon-delete"
          size="mini"
          :disabled="multiple"
          @click="handleDelete"
          v-hasPermi="['edu:course:remove']"
        >删除</el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button
          type="warning"
          plain
          icon="el-icon-download"
          size="mini"
          @click="handleExport"
          v-hasPermi="['edu:course:export']"
        >导出</el-button>
      </el-col>
      <right-toolbar :showSearch.sync="showSearch" @queryTable="getList"></right-toolbar>
    </el-row>

    <el-table v-loading="loading" :data="courseList" @selection-change="handleSelectionChange">
      <el-table-column type="selection" width="55" align="center" />
      <el-table-column label="ID" align="center" prop="id" />
      <el-table-column label="课程名称" align="center" prop="name" />
      <el-table-column label="任课教师" align="center" prop="teacher.nickName" />
      <el-table-column label="课程描述" align="center" prop="description" />
      <el-table-column label="编号" align="center" prop="no" />
      <el-table-column label="总课时" align="center" prop="total" />
      <el-table-column label="开始时间" align="center" prop="startTime" width="180">
        <template slot-scope="scope">
          <span>{{ parseTime(scope.row.startTime, '{y}-{m}-{d}') }}</span>
        </template>
      </el-table-column>
      <el-table-column label="结束时间" align="center" prop="endTime" width="180">
        <template slot-scope="scope">
          <span>{{ parseTime(scope.row.endTime, '{y}-{m}-{d}') }}</span>
        </template>
      </el-table-column>
      <el-table-column label="课程状态" align="center" prop="courseStatus">
        <template slot-scope="scope">
          <dict-tag :options="dict.type.course_status" :value="scope.row.courseStatus"/>
        </template>
      </el-table-column>
      <el-table-column label="备注" align="center" prop="remark" />
      <el-table-column label="原价" align="center" prop="amount" />
      <el-table-column label="折扣价" align="center" prop="discountPrice" />
      <el-table-column label="操作" align="center" class-name="small-padding fixed-width">
        <template slot-scope="scope">
          <el-button
            size="mini"
            type="text"
            icon="el-icon-edit"
            @click="handleUpdate(scope.row)"
            v-hasPermi="['edu:course:edit']"
          >修改</el-button>
          <el-button
            size="mini"
            type="text"
            icon="el-icon-delete"
            @click="handleDelete(scope.row)"
            v-hasPermi="['edu:course:remove']"
          >删除</el-button>
        </template>
      </el-table-column>
    </el-table>

    <pagination
      v-show="total>0"
      :total="total"
      :page.sync="queryParams.pageNum"
      :limit.sync="queryParams.pageSize"
      @pagination="getList"
    />

    <!-- 添加或修改课程管理对话框 -->
    <el-dialog :title="title" :visible.sync="open" width="500px" append-to-body>
      <el-form ref="form" :model="form" :rules="rules" label-width="80px">
        <el-form-item label="课程名称" prop="name">
          <el-input v-model="form.name" placeholder="请输入课程名称" />
        </el-form-item>
          <el-form-item label="任课教师" prop="teacherId" required >
            <el-select v-model="form.teacherId"  placeholder="请选择任课教师" @click.native="getTeachers" @change="selectTeacher(form.teacherId)" width="380px">
              <el-option
                v-for="item in teacherOptions"
                :key="item.userId"
                :label="item.userName+':'+item.nickName"
                :value="item.userId"
              ></el-option>
            </el-select>
          </el-form-item>

        <el-form-item label="课程描述" prop="description">
          <el-input v-model="form.description" placeholder="请输入课程描述" />
        </el-form-item>
        <el-form-item label="编号" prop="no">
          <el-input v-model="form.no" placeholder="请输入编号" />
        </el-form-item>
        <el-form-item label="总课时" prop="total">
          <el-input v-model="form.total" placeholder="请输入总课时" />
        </el-form-item>
        <el-form-item label="开始时间" prop="startTime">
          <el-date-picker clearable
                          v-model="form.startTime"
                          type="datetime"
                          value-format="yyyy-MM-dd HH:mm:ss"
                          placeholder="请选择开始时间">
          </el-date-picker>
        </el-form-item>
        <el-form-item label="结束时间" prop="endTime">
          <el-date-picker clearable
                          v-model="form.endTime"
                          type="datetime"
                          value-format="yyyy-MM-dd HH:mm:ss"
                          placeholder="请选择结束时间">
          </el-date-picker>
        </el-form-item>
        <el-form-item label="课程状态" prop="courseStatus">
          <el-select v-model="form.courseStatus" placeholder="请选择1:正常;2:暂停；3:取消">
            <el-option
              v-for="dict in dict.type.course_status"
              :key="dict.value"
              :label="dict.label"
              :value="dict.value"
            ></el-option>
          </el-select>
        </el-form-item>
        <!--<el-form-item label="删除标志" prop="delFlag">
          <el-input v-model="form.delFlag" placeholder="请输入删除标志" />
        </el-form-item>-->
        <el-form-item label="备注" prop="remark">
          <el-input v-model="form.remark" placeholder="请输入备注" />
        </el-form-item>
        <el-form-item label="原价" prop="amount">
          <el-input v-model="form.amount" placeholder="请输入原价" />
        </el-form-item>
        <el-form-item label="折扣价" prop="discountPrice">
          <el-input v-model="form.discountPrice" placeholder="请输入折扣价" />
        </el-form-item>
      </el-form>
      <div slot="footer" class="dialog-footer">
        <el-button type="primary" @click="submitForm">确 定</el-button>
        <el-button @click="cancel">取 消</el-button>
      </div>
    </el-dialog>
  </div>
</template>

<script>
  import { listCourse, getCourse, delCourse, addCourse, updateCourse } from "@/api/edu/course";
  import { listUser, getUser, delUser, addUser, updateUser, resetUserPwd, changeUserStatus,listTeacher } from "@/api/system/user";

  export default {
    name: "Course",
    dicts: ['course_status'],
    data() {
      return {
        // 遮罩层
        loading: true,
        // 选中数组
        ids: [],
        // 非单个禁用
        single: true,
        // 非多个禁用
        multiple: true,
        // 显示搜索条件
        showSearch: true,
        // 总条数
        total: 0,
        // 课程管理表格数据
        courseList: [],
        teacherOptions: [],
        // 弹出层标题
        title: "",
        // 是否显示弹出层
        open: false,
        // 查询参数
      queryParams: {
        pageNum: 1,
        pageSize: 10,
        name: null,
        description: null,
        no: null,
        total: null,
        startTime: null,
        endTime: null,
        courseStatus: null,
        amount: null,
        discountPrice: null,
        teacherId: null
      },
        // 表单参数
        form: {},
        // 表单校验
        rules: {
        }
      };
    },
    created() {
      this.getList();
    },
    mounted(){
      this.getTeachers()
    },
    methods: {
      /** 查询课程管理列表 */
      getList() {
        this.loading = true;
        listCourse(this.queryParams).then(response => {
          this.courseList = response.rows;
          this.total = response.total;
          this.loading = false;
        });
      },
      // 取消按钮
      cancel() {
        this.open = false;
        this.reset();
      },
      // 表单重置
    reset() {
      this.form = {
        id: null,
        name: null,
        description: null,
        no: null,
        total: null,
        startTime: null,
        endTime: null,
        courseStatus: null,
        delFlag: null,
        createBy: null,
        createTime: null,
        updateBy: null,
        updateTime: null,
        remark: null,
        amount: null,
        discountPrice: null,
        teacherId: null,
        userId: null

      };
        this.resetForm("form");
      },
      /** 搜索按钮操作 */
      handleQuery() {
        this.queryParams.pageNum = 1;
        this.getList();
      },
      /** 重置按钮操作 */
      resetQuery() {
        this.resetForm("queryForm");
        this.handleQuery();
      },
      // 多选框选中数据
      handleSelectionChange(selection) {
        this.ids = selection.map(item => item.id)
        this.single = selection.length!==1
        this.multiple = !selection.length
      },
      /** 新增按钮操作 */
      handleAdd() {
        this.reset();
        this.open = true;
        this.title = "添加课程管理";
      },
      /** 修改按钮操作 */
      handleUpdate(row) {
        let self = this;
        this.reset();
        const id = row.id || this.ids
        getCourse(id).then(response => {
          self.form = response.data;
          debugger
          // self.teacherOptions =[]
          // self.teacherOptions = [{"teacherId":response.data.teacher.userId,"userName":response.data.teacher.userName,"nickName":response.data.teacher.nickName}]
          self.open = true;
          self.title = "修改课程管理";
        });
      },
      /** 提交按钮 */
      submitForm() {
        this.$refs["form"].validate(valid => {
          if (valid) {
            if (this.form.id != null) {
              updateCourse(this.form).then(response => {
                this.$modal.msgSuccess("修改成功");
                this.open = false;
                this.getList();
              });
            } else {
              addCourse(this.form).then(response => {
                this.$modal.msgSuccess("新增成功");
                this.open = false;
                this.getList();
              });
            }
          }
        });
      },
      /** 删除按钮操作 */
      handleDelete(row) {
        const ids = row.id || this.ids;
        this.$modal.confirm('是否确认删除课程管理编号为"' + ids + '"的数据项？').then(function() {
          return delCourse(ids);
        }).then(() => {
          this.getList();
          this.$modal.msgSuccess("删除成功");
        }).catch(() => {});
      },
      /** 导出按钮操作 */
      handleExport() {
        this.download('edu/course/export', {
          ...this.queryParams
        }, `course_${new Date().getTime()}.xlsx`)
      },
      selectTeacher(teacherId) {
        let self = this
        let user = self.teacherOptions[self.teacherOptions.findIndex(item=>item.userId===teacherId)]
        debugger
        self.form.userId = user.userId

        // console.log(user.userId)
      },
      /** listUser */
      getTeachers() {
        let self = this
        listTeacher().then(response=>{
          self.teacherOptions = response.rows;
          debugger
        });
      },
    }
  };
</script>
